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PT1765729E - A process of preparing magnetic graphitic materials, and materials thereof - Google Patents

A process of preparing magnetic graphitic materials, and materials thereof Download PDF

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Publication number
PT1765729E
PT1765729E PT05751020T PT05751020T PT1765729E PT 1765729 E PT1765729 E PT 1765729E PT 05751020 T PT05751020 T PT 05751020T PT 05751020 T PT05751020 T PT 05751020T PT 1765729 E PT1765729 E PT 1765729E
Authority
PT
Portugal
Prior art keywords
materials
magnetic
torr
graphitic
container
Prior art date
Application number
PT05751020T
Other languages
Portuguese (pt)
Inventor
Fernando Manuel Araujo Moreira
Alvaro Washington Mo Rodriguez
Helena Pardo Minetti
Original Assignee
Univ Fed De Sao Carlos
Univ La Republica
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Fed De Sao Carlos, Univ La Republica filed Critical Univ Fed De Sao Carlos
Publication of PT1765729E publication Critical patent/PT1765729E/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/42—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of organic or organo-metallic materials, e.g. graphene
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/05—Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/20—Graphite
    • C01B32/205—Preparation
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/42—Magnetic properties
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Hard Magnetic Materials (AREA)
  • Soft Magnetic Materials (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

A process of preparing magnetic graphitic materials from graphite in a second container (3) that reacts with one of more transition metal oxide and in a first container (2) at a volume ratio of 1:1, in a closed reactor (1), heated up to a temperature between 600° C. and the melting temperature of the transition oxide (s) for 6 to 36 hours, under a pressure of 10 atmospheres with the help of a transfer inert gas through an inlet (5) and vacuum between 10−2 torr to 10−7 torr through an outlet (6), obtaining at the end of the process a graphitic material with long-lasting magnetic properties at room temperature. The material obtained exhibits a complex structure, with pores, bunches, pilings and edges of exposed graphenes and finds application in nanotechnology, magnetic images in medical science, applications in communication, electronics, sensors, even biosensors, catalysis or separation of magnetic materials.
PT05751020T 2004-06-16 2005-06-15 A process of preparing magnetic graphitic materials, and materials thereof PT1765729E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BRPI0402338-2A BRPI0402338B1 (en) 2004-06-16 2004-06-16 PROCESS FOR PREPARING MAGNETIC GRAPHIC MATERIALS AND PREPARED MATERIALS

Publications (1)

Publication Number Publication Date
PT1765729E true PT1765729E (en) 2009-02-24

Family

ID=36037075

Family Applications (1)

Application Number Title Priority Date Filing Date
PT05751020T PT1765729E (en) 2004-06-16 2005-06-15 A process of preparing magnetic graphitic materials, and materials thereof

Country Status (19)

Country Link
US (2) US8075793B2 (en)
EP (1) EP1765729B1 (en)
JP (1) JP4996459B2 (en)
KR (1) KR20070051839A (en)
CN (1) CN101031508B (en)
AT (1) ATE414676T1 (en)
AU (1) AU2005254126B2 (en)
BR (1) BRPI0402338B1 (en)
CA (1) CA2570469A1 (en)
DE (1) DE602005011138D1 (en)
ES (1) ES2320470T3 (en)
MX (1) MXPA06014805A (en)
NO (1) NO20070252L (en)
PT (1) PT1765729E (en)
RU (1) RU2374175C2 (en)
UA (1) UA85098C2 (en)
UY (1) UY28957A1 (en)
WO (1) WO2005123580A1 (en)
ZA (1) ZA200700363B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0402338B1 (en) * 2004-06-16 2015-01-06 Universidad De La República PROCESS FOR PREPARING MAGNETIC GRAPHIC MATERIALS AND PREPARED MATERIALS
KR20090026568A (en) 2007-09-10 2009-03-13 삼성전자주식회사 Graphene sheet and its manufacturing method
KR101443217B1 (en) 2007-09-12 2014-09-19 삼성전자주식회사 Graphene shell and process for preparing the same
KR101443222B1 (en) 2007-09-18 2014-09-19 삼성전자주식회사 Graphene pattern and process for preparing the same
KR101463064B1 (en) 2007-10-17 2014-11-19 삼성전자주식회사 Method of forming nano dot, memory device comprising nano dot formed using the same and method of manufacturing the same
KR101736462B1 (en) * 2009-09-21 2017-05-16 한화테크윈 주식회사 Method for manufacturing graphene
WO2011139236A1 (en) 2010-05-05 2011-11-10 National University Of Singapore Hole doping of graphene
US8664940B2 (en) 2010-10-12 2014-03-04 Hewlett-Packard Development Company, L.P. Graphite-based sensor
US9597672B2 (en) 2011-03-10 2017-03-21 Cornell University Mesoporous catalysts of magnetic nanoparticles and free-radical-producing enzymes, and methods of use
KR101398366B1 (en) * 2012-08-23 2014-05-22 울산대학교 산학협력단 Method of preparing ferromagnetic material from diamagnetic single crystal material and ferromagnetic material prepared by the method
US10881102B2 (en) 2015-05-18 2021-01-05 Zymtronix, Llc Magnetically immobilized microbiocidal enzymes
CN108140848B (en) 2015-07-15 2022-02-01 齐姆特罗尼克斯公司 Automated biological nanocatalyst production
CA3031802A1 (en) 2016-08-13 2018-02-22 Zymtronix Catalytic Systems, Inc. Magnetically immobilized biocidal enzymes and biocidal chemicals

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1633743A1 (en) * 1988-08-01 1995-07-25 Мариупольский металлургический институт Method for production of iron-containing expanded graphite
JP3313129B2 (en) * 1991-02-22 2002-08-12 シャープ株式会社 Graphite structure carbon intercalation compound, its production method and thermoelectric conversion element
JP2794173B2 (en) * 1996-04-19 1998-09-03 ウチヤ・サーモスタット株式会社 Method of forming composite carbon coating
CN1240263C (en) * 2002-07-12 2006-02-01 清华大学 Method for producing graphite base composite material for electromagnetic shield
BRPI0402338B1 (en) * 2004-06-16 2015-01-06 Universidad De La República PROCESS FOR PREPARING MAGNETIC GRAPHIC MATERIALS AND PREPARED MATERIALS

Also Published As

Publication number Publication date
NO20070252L (en) 2007-03-14
US8075793B2 (en) 2011-12-13
CA2570469A1 (en) 2005-12-29
AU2005254126A1 (en) 2005-12-29
JP2008502562A (en) 2008-01-31
KR20070051839A (en) 2007-05-18
US20080237533A1 (en) 2008-10-02
AU2005254126B2 (en) 2010-08-19
RU2374175C2 (en) 2009-11-27
WO2005123580A1 (en) 2005-12-29
JP4996459B2 (en) 2012-08-08
UY28957A1 (en) 2006-06-30
RU2007101391A (en) 2008-07-27
UA85098C2 (en) 2008-12-25
EP1765729A1 (en) 2007-03-28
US20120128929A1 (en) 2012-05-24
BRPI0402338A (en) 2006-02-14
ES2320470T3 (en) 2009-05-22
CN101031508A (en) 2007-09-05
ATE414676T1 (en) 2008-12-15
MXPA06014805A (en) 2007-06-22
US8303836B2 (en) 2012-11-06
CN101031508B (en) 2011-06-08
BRPI0402338B1 (en) 2015-01-06
DE602005011138D1 (en) 2009-01-02
ZA200700363B (en) 2008-08-27
EP1765729B1 (en) 2008-11-19

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